10 Mark

Frankenthal's municipal administration issued this note in 1918 under the Darlehnskassenschein framework that permitted German towns to produce emergency paper during the acute coin shortages of the late war period. Frankenthal, an industrial center in the Rhenish Palatinate, had significant metalworking output — the very industries driving the war effort were simultaneously draining the small-denomination coinage from daily commercial life.

The Geiger reference suffix "c" indicates a recognized variety within the type, most likely a paper or overprint distinction rather than a date change. Such sub-varieties in municipal Notgeld are frequently overlooked and undervalued relative to their actual scarcity.